---Hello, this is Mike. Is Dr. Li in?---Sorry, he_________ to the west of Africa to help the patients there.A.has been B. is going C. has gone
Her parents don’t allow her _________ up late.
You must apologize to her ______ being late.
Why not __________ the right answers?
—I enjoyed the performance very much. —Yes, it was really good. I think ____ boy in white was the best dancer.
Australia is a continent ___ many different kinds of animals.